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Evaluation of parameters affected on the blast induced

or trenches between the point of blast and the point of interest The first group has mainly utilized scaled distance modeling to determine site constants After determining site constants for the specific area they have estimated the amount of explosive per delay for safe blasting 24 27

Protecting Mining Environments from Blasting through

A surface gold mine wishes to develop a new pit Pit A as part of its mining schedules The proposed pit outline is about 300 m to the closest community Blasting operations in Pit A would potentially create undesirable environmental impacts including fly rocks ground vibrations and air blasts to neighbouring communities Integration of proper planning tools or protocols for blasting at Pit

Surface mineral workings control of blastinggov scot

Blasting operations at surface mineral workings were controlled by the Quarries Explosives Regulations 1988 These regulations detailed the duties of the site owner manager and shotfirer in the conduct of blasting operations The health and safety implications of general quarry operations were controlled by The Quarries Miscellaneous Health

Blasting Best Practices Safety PrecautionsT M I

Considering the potential aftermath of the blast on the surrounding environment can control damages and prevent injuries Hazards like fumes and fly rock can impact people and property so the calculations should place all on site individuals at a safe distance from the explosion

General Guidelines for Blasting DRAFT April 2007

Blasting Survey Procedure to TransCanada for approval prior to the start of any blasting operations The Pre Blasting Survey Procedure shall include locations and site plans for areas known to require blasting and the scope of blasting required The Pre Blasting Survey Procedure must include but not limited to the following information 1

Controlling the Adverse Effects of Blasting

BLASTING BEISMOGRAPHS Proper Use of Blasting Seismographs The field practice recommendations are intended to serve as general guidelines and cannot describe all types of field conditions It is incumbent on the operator to evaluate these conditions and to obtain good coupling between monitoring instrument and the surface to be monitored

Safety Distance of Shotcrete Subjected to Blasting

The drill and blast method is widely used in constructing tunnels in rock Unfortunately blasting vibration can damage newly performed shotcrete layers which are major support structures to stabilize surrounding structures Therefore investigation of the influence of blasting on shotcrete and determining reasonable distance between blasting work face and shotcrete position is of great

MANAGING SOCIAL AND ENVIRONMENTAL IMPACTS

4 0 ENVIRONMENTAL HAZARDS Increasing numbers of mining operations are coming under pressure to monitor and reduce blasting related safety and environmental hazards with blasting which collectively affect the surrounding environment adversely range that can be tightened by site calibration The output is the distance that rock will be

APPENDIX Q BLASTING IMPACT ASSESSMENT REPORT

safe scaled distance of 50 ft/lb1/2 for a maximum allowable peak particle velocity of 2 inches/s 50 8 mm/s Using the seismograph information from Figure 2 it can be seen that a minimum safe scaled distance for a maximum particle velocity of 12 5 mm/s at the 95 percent confidence level is 60 m/kg1/2 Therefore 60 m/kg1/2 was chosen to

Technology For Safety And Environmental Control In

Blasting operations cause several adverse environmental effects and may result in safety problems with the development of new explosives systems and initiation devices blast design and execution techniques the blasting process has now become more efficient and safer than before use of software tools for blast design support in execution blast monitoring and analysis makes it possible

APPENDIX Q BLASTING IMPACT ASSESSMENT REPORT

safe scaled distance of 50 ft/lb1/2 for a maximum allowable peak particle velocity of 2 inches/s 50 8 mm/s Using the seismograph information from Figure 2 it can be seen that a minimum safe scaled distance for a maximum particle velocity of 12 5 mm/s at the 95 percent confidence level is 60 m/kg1/2 Therefore 60 m/kg1/2 was chosen to

Safe Distance for BlastingUttam Blastech

The Rule of Safe Blasting Distance is there are no Rules There are instances where Blasting was done to chisel a sculpture out of a mountain There are also instances of blasting Damage witnessed more than a Kilometre away What matters is the attitude of the Blasting Company and the site

REVIEW OF PRESENT PRACTICES USED IN PREDICTING

R = distance between explosion and recording site m and W= explosive quantity kg per delay period Table 1 presents quantity distance relationships for specific values of peak particle velocity as estimated by equation 4 For buried detonations in a deep saturated soil deposit Drake and lngram I 31 presented meas

Managing Social And Environmental Issues Due To

Blasting operations cause several adverse environmental effects and may result in safety problems this study evaluates the impacts resulting from blasting operation on nearby buildings and structures as it generates ground vibration air blast and fly rocks in this paper first blasting operation and its possible environmental effects are defined then the methods of blast vibration

PDF Safety Distance of Shotcrete Subjected to Blasting

the distance between secondary shotcrete and blasting point was above 6 m 2 excavation cycles and the blast was carried out 3 days after shotcrete was performed

Safe Distance for BlastingUttam Blastech

The Rule of Safe Blasting Distance is there are no Rules There are instances where Blasting was done to chisel a sculpture out of a mountain There are also instances of blasting Damage witnessed more than a Kilometre away What matters is the attitude of the Blasting Company and the site owner

Protecting Workers from the Hazards of Abrasive

Abrasive blasting using a dust collection system with multiple exhaust ducts Photo courtesy of Flexaust Inc This equipment is shown for illustrative purposes only and is not intended as an endorsement by OSHA of this company its products or services Employers can use OSHA s free On site Consultation Program for advice on safety

Minimising noise and vibration from blasting activities

Blasting times To minimise disruption to the public blasting is to be conducted only between 9am and 3pm on Monday to Friday and between 9am and 1pm on Saturdays not on Sundays or public holidays Conduct blasting outside these times only when blasting during these times is impracticable or the site is so remote that no one will be affected

APPENDIX J BLASTING REPORTSAHRIS

East Mine is around 960m but this distance will reduce to around 300m as this pit is developed to the north The distance from the eastern portion of Maditlokwa Silver City to the eastern half of the East Mine will range between 1 700m to around 1 600m Blasting in this section of the mine will have a minimal impact on the village and will not be

Commonly Used Blasting Terminology T M International

In the blasting industry these terms are often vital for the promotion of a safe and effective environment for the storage transport and use of explosive materials REQUEST A QUOTE We ve created this blasting terms glossary to better promote the use of safe and clear language throughout the commercial blasting industry

SEISMIC EFECTS ON THE ENVIRONMENTAL RELATED TO

rdistance from the blasting site to the site of measurement m Qquantity of explosives used kg In the equation 1 appear two parameters Kv and n which should determine the specific work environment and conditions of blasting The important feature of the law of oscillation of the ground depending on the distance is reduced as the

Blasting RiskThe Tactical Safety Network

Managers engineers and blasters can use the following system to manage blasting risk As shown in Figure 3 safe and efficient blasting programs are supported by four different fundamental activities The first supporting leg is to ensure that the project Design and plans are

Shaped Charge Hydraulic Blasting An Environmental Safe

Shaped Charge Hydraulic Blasting An Environmental Safe and Economical Method of Directional Roof Cutting Quan Zhang 1 Jiong Wang 2 The distance between adjacent blastholes for

Vessel Safety ManualUnited States Environmental

through section 19 of the Occupational Safety and Health Act and Title 29 of the Code of Federal Regulations CFR section 1960 requires that all federal agencies establish comprehensive safety and health management programs Authority In accordance with EPA Order 1440 1 Safety Health and Environmental Management Program

Excavation safety WorkSafe

Site safety electricity gas sewerage telecommunications water services The condition of soil surrounding excavations can change quickly when the soil dries out the water table changes or water saturates the soil Make sure spotters are a safe distance from any plant movement but still able to see and warn the operator

Commonly Used Blasting Terminology T M International

In the blasting industry these terms are often vital for the promotion of a safe and effective environment for the storage transport and use of explosive materials REQUEST A QUOTE We ve created this blasting terms glossary to better promote the use of safe and clear language throughout the commercial blasting industry

NATIONAL ENVIRONMENTAL QUARRYING AND

Part IV BLASTING OPERATION PLAN 17 Blasting Operations Plan 18 Blasting Below Ground Level Part V OPERATING MECHANISMS AND GUIDELINES FOR BLASTING 19 Registration with the Agency 20 Minimum Safe Distance from Residence 21 Prohibition of Blasting or Felling of Rock 22 Act of Blasting or Felling 23 Blasting Guidelines Part VI

Surface mineral workings control of blastinggov scot

Blasting operations at surface mineral workings were controlled by the Quarries Explosives Regulations 1988 These regulations detailed the duties of the site owner manager and shotfirer in the conduct of blasting operations The health and safety implications of general quarry operations were controlled by The Quarries Miscellaneous Health

Controlling the Adverse Effects of Blasting

BLASTING BEISMOGRAPHS Proper Use of Blasting Seismographs The field practice recommendations are intended to serve as general guidelines and cannot describe all types of field conditions It is incumbent on the operator to evaluate these conditions and to obtain good coupling between monitoring instrument and the surface to be monitored

Blasting Best Practices Safety PrecautionsT M I

Considering the potential aftermath of the blast on the surrounding environment can control damages and prevent injuries Hazards like fumes and fly rock can impact people and property so the calculations should place all on site individuals at a safe distance from the explosion

BLASTING REPORT APPENDIX JJGold Coast Quarry

potential impacts on surrounding residences Trial blasting will be conducted in the early stages of development of the Processing Plant Pad where small charges 2035 kg are expected to be used and the minimum distance to a sensitive receiver is approximately 450 metres